Home >> Hyundai >> 2004 >> Accent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (1 Of 2) >> DTC Troubleshooting Procedures >> DTC P0138: O2 Sensor Circuit High Input (Bank1/SESN0R2) >> DTC Detecting Condition >> 1.5 SOHC